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sharevb 2024-04-22 08:38:03 +02:00 committed by GitHub
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3 changed files with 72 additions and 11 deletions

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@ -11,6 +11,24 @@ describe('integer-base-converter', () => {
expect(convertBase({ value: '10100101', fromBase: 2, toBase: 16 })).toEqual('a5');
expect(convertBase({ value: '192654', fromBase: 10, toBase: 8 })).toEqual('570216');
expect(convertBase({ value: 'zz', fromBase: 64, toBase: 10 })).toEqual('2275');
expect(convertBase({ value: 'AA', fromBase: 16, toBase: 10 })).toEqual('170');
expect(convertBase({ value: 'aa', fromBase: 16, toBase: 10 })).toEqual('170');
expect(convertBase({ value: '0xAA', fromBase: -1, toBase: 10 })).toEqual('170');
expect(convertBase({ value: '&HAA', fromBase: -1, toBase: 10 })).toEqual('170');
expect(convertBase({ value: '0xAAUL', fromBase: -1, toBase: 10 })).toEqual('170');
expect(convertBase({ value: '0XAAUL', fromBase: -1, toBase: 10 })).toEqual('170');
expect(convertBase({ value: '10UL', fromBase: 10, toBase: 10 })).toEqual('10');
expect(convertBase({ value: '10n', fromBase: 10, toBase: 10 })).toEqual('10');
expect(convertBase({ value: '0o252', fromBase: -1, toBase: 10 })).toEqual('170');
expect(convertBase({ value: '&O252', fromBase: -1, toBase: 10 })).toEqual('170');
expect(convertBase({ value: '192 654', fromBase: 10, toBase: 8 })).toEqual('570216');
expect(convertBase({ value: '192.654', fromBase: 10, toBase: 8 })).toEqual('570216');
expect(convertBase({ value: '0b10101010', fromBase: -1, toBase: 10 })).toEqual('170');
expect(convertBase({ value: '0b_1010_1010', fromBase: -1, toBase: 10 })).toEqual('170');
expect(convertBase({ value: '192,654', fromBase: 10, toBase: 8 })).toEqual('570216');
expect(convertBase({ value: '42540766411283223938465490632011909384', fromBase: 10, toBase: 10 })).toEqual('42540766411283223938465490632011909384');
expect(convertBase({ value: '42540766411283223938465490632011909384', fromBase: 10, toBase: 16 })).toEqual('20010db8000085a300000000ac1f8908');
expect(convertBase({ value: '20010db8000085a300000000ac1f8908', fromBase: 16, toBase: 10 })).toEqual('42540766411283223938465490632011909384');
});
});
});

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@ -1,20 +1,61 @@
export function convertBase({ value, fromBase, toBase }: { value: string; fromBase: number; toBase: number }) {
export function hasNumberPrefix(value: string) {
return (value ?? '').trim().match(/^(0[xob].|&[hob].)/i);
}
export function convertBase(
{
value, fromBase, toBase,
ignorePunctuationsRegexChars = ' \u00A0_\.,-',
handlePrefixSuffix = true,
ignoreCase = true,
}: {
value: string
fromBase: number
toBase: number
ignorePunctuationsRegexChars?: string
handlePrefixSuffix?: boolean
ignoreCase?: boolean
}) {
let cleanedValue = (value ?? '0').trim();
if (ignorePunctuationsRegexChars) {
cleanedValue = cleanedValue.replace(new RegExp(`[${ignorePunctuationsRegexChars}]`, 'g'), '');
}
let finalFromBase = fromBase;
if (handlePrefixSuffix) {
for (const regBase of [
{ base: 2, regex: /^(&b|0b)?([01]+)([IULZn]*)$/i },
{ base: 8, regex: /^(&o|0o)?([0-7]+)([IULZn]*)$/i },
{ base: 16, regex: /^(&h|0x)?([a-f0-9]+)([IULZn]*)$/i },
]) {
const match = cleanedValue.match(regBase.regex);
if (match) {
if (match[1]) {
finalFromBase = regBase.base;
}
cleanedValue = match[2];
break;
}
}
}
if (ignoreCase && finalFromBase <= 36) {
cleanedValue = cleanedValue.toLowerCase();
}
const range = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ+/'.split('');
const fromRange = range.slice(0, fromBase);
const fromRange = range.slice(0, finalFromBase);
const toRange = range.slice(0, toBase);
let decValue = value
let decValue = cleanedValue
.split('')
.reverse()
.reduce((carry: number, digit: string, index: number) => {
.reduce((carry: bigint, digit: string, index: number) => {
if (!fromRange.includes(digit)) {
throw new Error(`Invalid digit "${digit}" for base ${fromBase}.`);
throw new Error(`Invalid digit "${digit}" for base ${finalFromBase}.`);
}
return (carry += fromRange.indexOf(digit) * fromBase ** index);
}, 0);
return (carry += BigInt(fromRange.indexOf(digit)) * BigInt(finalFromBase) ** BigInt(index));
}, 0n);
let newValue = '';
while (decValue > 0) {
newValue = toRange[decValue % toBase] + newValue;
decValue = (decValue - (decValue % toBase)) / toBase;
newValue = toRange[Number(decValue % BigInt(toBase))] + newValue;
decValue = (decValue - (decValue % BigInt(toBase))) / BigInt(toBase);
}
return newValue || '0';
}

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@ -1,6 +1,6 @@
<script setup lang="ts">
import InputCopyable from '../../components/InputCopyable.vue';
import { convertBase } from './integer-base-converter.model';
import { convertBase, hasNumberPrefix } from './integer-base-converter.model';
import { getErrorMessageIfThrows } from '@/utils/error';
const inputProps = {
@ -15,6 +15,8 @@ const input = ref('42');
const inputBase = ref(10);
const outputBase = ref(42);
const hasInputNumberPrefix = computed(() => hasNumberPrefix(input.value));
function errorlessConvert(...args: Parameters<typeof convertBase>) {
try {
return convertBase(...args);
@ -36,7 +38,7 @@ const error = computed(() =>
<c-card>
<c-input-text v-model:value="input" label="Input number" placeholder="Put your number here (ex: 42)" label-position="left" label-width="110px" mb-2 label-align="right" />
<n-form-item label="Input base" label-placement="left" label-width="110" :show-feedback="false">
<n-form-item v-if="!hasInputNumberPrefix" label="Input base" label-placement="left" label-width="110" :show-feedback="false">
<n-input-number v-model:value="inputBase" max="64" min="2" placeholder="Put your input base here (ex: 10)" w-full />
</n-form-item>